Port Qasim Authority in the context of List of ports in Pakistan

The Port Muhammad Bin Qasim (Urdu: محمد بن قاسم بندرگاہ Bandar-gāh Muhammad bin Qāsim), or Qasim Port Authority (Urdu: مقتدرہ قاسم بندرگاہ), also known as Port Qasim, is a deep-water seaport in Karachi, Sindh, Pakistan, on the coastline of the Arabian Sea under the administrative control of the Secretary to the Government of Pakistan for Maritime Affairs. It is Pakistan's second busiest port, handling about 35% of the nation's cargo (17 million tons per annum). Port Qasim and Karachi Port, the busiest port of the country, together handle almost 90% of all external trade of Pakistan. The remaining maritime trade is routed through Gwadar Port.

The port encompasses a total area of 12,000 acres (49 km) wherein many industrial zones operate. In addition to the Pakistan Steel Mills (PSM) and KESC Bin Qasim Power Plant, around 80% of the Pakistan's automotive industry is located at Port Qasim. The port also provides direct waterfront access to two major nearby industrial areas, Export Processing Zone (Landhi) and Korangi Industrial Area. Approximately 60% of country's export and import is originated from these areas. Port Qasim is managed by Port Qasim Authority, a semi-autonomous government body.

The Maritime Secretary of Pakistan, also referred to as Ports and Shipping Secretary, is the Federal Secretary for the Ministry of Maritime Affairs. The position holder is a BPS-22 grade officer, usually belonging to the Pakistan Administrative Service. The Maritime Secretary is considered to be a coveted slot in the Government of Pakistan, with major organisations such as the Pakistan National Shipping Corporation (PNSC), Karachi Port Trust (KPT), Port Qasim Authority (PQA) and Gwadar Port Authority (GPA) as well as the country's deep sea fishing between the territorial waters base line and the outermost limits of the exclusive economic zone falling under the Secretary's purview.

The current Maritime Secretary is Zafar Ali Shah. Previous maritime secretaries include Rizwan Ahmed, Mumtaz Ali Shah, Fazalur Rehman and Babar Yaqoob Fateh Muhammad.